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"Given what happened, we have decided we will not eat red meat," said Herrera.

"Here there's very good cooking, we have a spectacular chef and eat all kinds of meat, except beef.

"'We've also been telling the players for the last month and a half not to eat beef and they've paid heed."

Sex ban

Herrera has also told his players that they will be in Brazil for the football, not to party.

He announced the ban on sex in an interview with Mexican paper Reforma, saying: "If a player can not endure a month or 20 days without having intercourse, then you are not prepared to be a professional.